func getErrorString(code C.ulong) string {
if code == 0 {
return ""
}
msg := fmt.Sprintf("%s:%s:%s\n",
C.GoString(C.ERR_lib_error_string(code)),
C.GoString(C.ERR_func_error_string(code)),
C.GoString(C.ERR_reason_error_string(code)))
if len(msg) == 4 { //being lazy here, all the strings were empty
return ""
}
//Check for extra line data
var file *C.char
var line C.int
var data *C.char
var flags C.int
if int(C.ERR_get_error_line_data(&file, &line, &data, &flags)) != 0 {
msg += fmt.Sprintf("%s:%s", C.GoString(file), int(line))
if flags&C.ERR_TXT_STRING != 0 {
msg += ":" + C.GoString(data)
}
if flags&C.ERR_TXT_MALLOCED != 0 {
C.CRYPTO_free(unsafe.Pointer(data))
}
}
return msg
}
// errorFromErrorQueue needs to run in the same OS thread as the operation
// that caused the possible error
func errorFromErrorQueue() error {
var errs []string
for {
err := C.ERR_get_error()
if err == 0 {
break
}
errs = append(errs, fmt.Sprintf("%s:%s:%s",
C.GoString(C.ERR_lib_error_string(err)),
C.GoString(C.ERR_func_error_string(err)),
C.GoString(C.ERR_reason_error_string(err))))
}
return errors.New(fmt.Sprintf("SSL errors: %s", strings.Join(errs, "\n")))
}